Noise reduction switch

Abstract

The utility model discloses a noise reduction switch, comprising a seat body, a button and a reset member, the button is movably arranged on the seat body, and the reset member is arranged between the button and the seat body and provides an elastic force enabling one end of the button to extend out of the seat body; limiting ends are arranged at the head end and the tail end of the base body in the moving direction of the key, and limiting parts corresponding to the limiting ends are arranged on the key. At least one of the limiting end and the limiting part is provided with a buffering part capable of buffering and reducing noise when the limiting end and the limiting part collide with each other. When the noise reduction switch is pressed, the key can be buffered, the impact sound is effectively reduced, and the noise reduction effect is achieved.

Description

Technical Field

[0001] The utility model relates to a key switch, in particular to a noise reduction switch. Background Art

[0002] The existing switch generally includes a base, a button and a spring. When operating the switch, the button is pressed with a finger to move downward relative to the base, so that the button contacts the electrical components on the base to trigger the switch. After the triggering is completed, the button rebounds upward to the upper end of the base under the elastic force of the spring to reset. However, the button and the base will make noise when pressed and reset, which not only causes noise pollution, but also affects the pressing touch of the switch. Utility Model Content

[0003] The utility model aims to provide a noise reduction switch which can buffer a key when pressed, effectively reduce the impact sound and achieve the noise reduction effect.

[0004] In order to achieve the above-mentioned purpose, the noise reduction switch provided by the utility model includes a base body, a button and a reset member, the button is movably arranged on the base body, the reset member is arranged between the button and the base body and provides an elastic force that causes one end of the button to extend out of the base body; the base body is provided with limit ends at both ends of the moving direction of the button, and the button is provided with a limit part corresponding to the limit end; at least one of the limit end and the limit part is provided with a buffer part that can buffer and reduce noise against the impact of the former two.

[0005] Compared with the prior art, the utility model sets limit ends at both ends of the seat body, sets limit parts at both ends of the button, and provides a buffer part on at least one of the limit ends and the limit parts. Thus, when the button moves and hits the seat body, the buffer part can be used to buffer the impact of the limit end and the limit part, thereby avoiding the collision between the two to produce a loud impact sound, greatly reducing noise, and achieving the effect of noise reduction.

[0006] Preferably, a sliding groove is provided on the inner side of the seat, and the two ends of the sliding groove form the limiting ends. A slider is provided on the outer side of the key, and the slider is slidably arranged in the sliding groove, and the two ends of the slider form the limiting parts. By providing the sliding groove and the slider, the slider is slidably placed in the sliding groove, so that the key can slide along the direction of the sliding groove, which can not only limit the key, but also improve the accuracy of the key sliding.

[0007] Specifically, the slider is symmetrically arranged on the outer side of the button, and the sliding groove is arranged on two opposite inner sides of the seat. By arranging sliders on both sides of the button, the button can move more stably when pressed and reset.

[0008] Specifically, the buffer portion is arranged on at least one limiting portion of the sliding block.

[0009] Preferably, the buffer portion includes a connecting portion and an elastic portion, wherein the connecting portion is connected to the limiting portion, the elastic portion is connected to the connecting portion, and the elastic portion is located between the limiting end corresponding to the end and the limiting portion. By providing the elastic portion, the buffer portion has elasticity, so that when the key hits the seat, a buffer is generated, thereby achieving the purpose of noise reduction.

[0010] Specifically, the elastic portion is bent relative to the connecting portion, and the outer side surface of the elastic portion forms a buffer surface that contacts the limiting portion.

[0011] Specifically, the connecting portion, the elastic portion and the limiting portion are an integrally formed structure.

[0012] Preferably, a guide column extends from the lower end of the button, a guide sleeve is provided in the seat, and the guide column is slidably sleeved on the guide sleeve. The cooperation between the guide column and the guide sleeve makes the button slide more smoothly on the seat, thereby making the switch feel better when pressed.

[0013] Preferably, the seat body includes a base and an upper cover, an opening connecting the inside and the outside is provided on the upper side of the upper cover, the upper cover is connected to the base, and the button extends through the opening and out of the upper cover. By configuring the seat body as a base and an upper cover, the button and the reset member can be more easily assembled into the seat body, thereby improving the convenience of assembly.

[0014] Specifically, an elastic buckle is provided on the outer side of one of the upper cover and the base, and a clamping block is provided on the other, and when the upper cover is connected to the base, the elastic buckle and the clamping block are detachably engaged and connected. By engaging the elastic buckle and the clamping block, the upper cover and the base are detachably connected, thereby improving the convenience of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the noise reduction switch of the utility model.

[0016] Figure 2 It is an axial cross-sectional view of the noise reduction switch of the utility model in the starting state.

[0017] Figure 3 The utility model is a structural diagram of the key of the noise reduction switch.

[0018] Figure 4 It is a structural diagram of another embodiment of the button of the noise reduction switch of the utility model.

[0019] Figure 5 It is an axial cross-sectional view of the noise reduction switch of the utility model in a pressed state. DETAILED DESCRIPTION

[0020] In order to explain the technical content, structural features and effects achieved by the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0021] like Figures 1 to 5 As shown, the noise reduction switch 100 of the utility model includes a base 1, a button 2 and a reset member 3, wherein the button 2 is movably arranged in the base 1, and the reset member 3 is arranged between the button 2 and the base 1 and provides an elastic force for making one end of the button 2 extend out of the base 1; the base 1 is provided with limit ends 11 at both ends of the moving direction of the button 2, and the button 2 is provided with a limit portion 21 corresponding to the limit end 11; at least one of the limit end 11 and the limit portion 21 is provided with a buffer portion 22 which can buffer and reduce noise of the impact of the former two.

[0022] Please refer to Figure 2 and Figure 3 The two opposite inner sides of the seat body 1 are provided with sliding grooves 12, and the two ends of the sliding grooves 12 form the limiting ends 11. The two opposite outer sides of the button 2 are provided with sliders 23, and the sliders 23 are slidably arranged in the sliding grooves 12, and the two ends of the sliders 23 form the limiting portions 21. By arranging sliders 23 on both sides of the button 2, the button 2 can move more stably when pressed and reset. And the sliders 23 are slidably placed in the sliding grooves 12, so that the button 2 can slide along the direction of the sliding grooves 12, which can not only limit the button 2, but also improve the sliding accuracy of the button 2.

[0023] Please refer to Figure 3, the buffer part 22 is arranged on at least one limiting part 21 of the slider 23. In this embodiment, the buffer part 22 is arranged on the two limiting parts 21 of the slider 23. The buffer part 22 includes a connecting part 221 and an elastic part 222, the connecting part 221 is connected to the limiting part 21, the elastic part 222 is connected to the connecting part 221, the elastic part 222 is located between the limiting end 11 corresponding to the end and the limiting part 21, and the elastic part 222 is bent relative to the connecting part 221. On the same limiting part 21, the number of the buffer parts 22 is two and they are arranged axially symmetrically. The two elastic parts 222 extend toward each other, and the outer side surface of the elastic part 222 forms a buffer surface 222a that contacts the limiting part 21. By setting the elastic part 222, the buffer part 22 has elasticity, so that it can generate buffering when the button 2 hits the seat 1, thereby achieving the purpose of noise reduction. The connecting portion 221, the elastic portion 222 and the limiting portion 21 are integrally formed. Figure 4 As shown, the buffer portion 22 is disposed on the limit portion 21 at the upper end of the slider 23. When the button 2 is pressed downward, there is no buffering between it and the base 1. When the button 2 is reset upward, the button 2 and the base 1 are buffered by the buffer portion 22.

[0024] Please see again Figure 1 and Figure 3 A guide column 24 extends from the lower end of the button 2, and a guide sleeve 13 is provided in the seat body 1 to extend upward. The guide column 24 is slidably sleeved on the guide sleeve 13. The reset member 3 is sleeved outside the guide sleeve 13. The reset member 3 is a compression spring, one end of which contacts the button 2, and the other end of which contacts the inner bottom of the seat body 1. The guide column 24 cooperates with the guide sleeve 13 to make the button 2 slide more smoothly on the seat body 1, so that the touch of pressing the switch is better.

[0025] See also Figure 1The seat body 1 includes a base 110 and an upper cover 120. The upper side of the upper cover 120 is provided with an opening 121 that connects the inside and the outside. The upper cover 120 is connected to the base 110, and the button extends out of the upper cover 120 through the opening 121. By setting the seat body 1 as the base 110 and the upper cover 120, the button 2 and the reset member 3 are more easily assembled into the seat body 1, thereby improving the convenience of assembly. Specifically, an elastic buckle 122 is provided on the outer side of one of the upper cover 120 and the base 110, and a card block 112 is provided on the other. When the upper cover 120 is connected to the base 110, the elastic buckle 122 is detachably engaged with the card block 112. By engaging the elastic buckle 122 with the card block 112, the upper cover 120 is detachably connected to the base 110, thereby improving the convenience of assembly.

[0026] For example Figure 1 As shown, in addition, the noise reduction switch 100 of the utility model further includes a magnet 4 and a Hall sensor (not shown in the figure), wherein the magnet 4 is disposed on the button 2 and located at the lower end of the guide column 24, and the Hall sensor is disposed on the lower bottom surface of the base 1. When the button 2 is pressed downward, the button 2 drives the magnet 4 to move downward and approach the Hall sensor, so that the Hall sensor generates an induction signal to trigger the switch.

[0027] Compared with the prior art, the utility model sets limit ends 11 at both ends of the base body 1, sets limit parts 21 at both ends of the button 2, and at least one of the limit ends 11 and the limit parts 21 is provided with a buffer part 22. Therefore, when the button 2 moves and hits the base body 1, the buffer part 22 can be used to buffer the impact of the limit end 11 and the limit part 21, thereby avoiding the collision between the two to produce a loud impact sound, greatly reducing noise, and achieving the effect of noise reduction.

[0028] The above disclosure is only a preferred example of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A noise reduction switch, characterized in that: The invention comprises a seat body, a button and a reset member, wherein the button is movably arranged on the seat body, the reset member is arranged between the button and the seat body and provides an elastic force to make one end of the button extend out of the seat body; the seat body is provided with limit ends at both ends of the moving direction of the button, and the button is provided with a limit part corresponding to the limit end; at least one of the limit end and the limit part is provided with a buffer part which can buffer and reduce noise of the impact of the former two.

2. The noise reduction switch according to claim 1, characterized in that: A sliding groove is provided on the inner side of the seat body, and two ends of the sliding groove form the limiting ends. A slider is provided on the outer side of the button, and the slider is slidably arranged in the sliding groove, and two ends of the slider form the limiting parts.

3. The noise reduction switch according to claim 2, characterized in that: The sliding block is symmetrically arranged on the outer side of the button, and the sliding groove is arranged on two opposite inner sides of the seat body.

4. The noise reduction switch according to claim 2, characterized in that: The buffer portion is arranged on at least one limiting portion of the sliding block.

5. The noise reduction switch according to claim 1, characterized in that: The buffer portion includes a connecting portion and an elastic portion, the connecting portion is connected to the limiting portion, the elastic portion is connected to the connecting portion, and the elastic portion is located between the limiting end corresponding to the end and the limiting portion.

6. The noise reduction switch according to claim 5, characterized in that: The elastic portion is bent relative to the connecting portion, and an outer side surface of the elastic portion forms a buffer surface that contacts the limiting portion.

7. The noise reduction switch according to claim 5, characterized in that: The connecting portion, the elastic portion and the limiting portion are in an integrally formed structure.

8. The noise reduction switch according to claim 1, characterized in that: A guide column extends from the lower end of the button, a guide sleeve is arranged in the seat body, and the guide column is slidably sleeved on the guide sleeve.

9. The noise reduction switch according to claim 1, characterized in that: The seat body includes a base and an upper cover. An opening connecting the inside and the outside is provided on the upper side of the upper cover. The upper cover is connected to the base, and the button extends through the opening and out of the upper cover.

10. The noise reduction switch according to claim 9, characterized in that: An elastic buckle is disposed on the outer side of one of the upper cover and the base, and a clamping block is disposed on the other one. When the upper cover is connected to the base, the elastic buckle is detachably clamped and connected with the clamping block.

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